5-(2,5-Dichlorophenyl)isoxazole-3-carboxylic Acid CAS 953724-37-3
| CAS No. | 953724-37-3 |
| Molecular Formula | C10H5Cl2NO3 |
| Molecular Weight | 258.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-(2,5-Dichlorophenyl)isoxazole-3-carboxylic Acid (C10H5Cl2NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-(2,5-Dichlorophenyl)isoxazole-3-carboxylic Acid (CAS 953724-37-3), molecular formula C10H5Cl2NO3 and molecular weight 258.06 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-(2,5-Dichlorophenyl)isoxazole-3-carboxylic Acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H5Cl2NO3 |
| Molecular Weight | 258.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichlorophenyl Standards
- 1-(2,5-Dichlorophenyl)-1h-1,2,3-triazole-5-carboxylic acid (CAS 101860-73-5)
- 1-(2,4-Dichlorophenyl)-1H-1,2,4-triazole-3-carboxylic acid (CAS 103058-71-5)
- 1-(3,4-Dichlorophenyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1094673-43-4)
- 1-(2,3-Dichlorophenyl)-1h-1,2,3-triazole-5-carboxylic acid (CAS 1153904-73-4)
- 1-(3,4-Dichlorophenyl)-1h-1,2,3-triazole-5-carboxylic acid (CAS 1153905-03-3)
- 5-(2,6-Dichlorophenyl)-1,3-oxazole-4-carboxylic acid (CAS 1248310-70-4)
- 5-(2,5-Dichlorophenyl)-1,3-oxazole-4-carboxylic acid (CAS 1249213-48-6)
- 2-(3,4-Dichlorophenyl)oxazole-4-carboxylic acid (CAS 1249920-40-8)
Recommended Standards
- 5-(2,4-Dichlorophenyl)oxazole-4-carboxylic Acid (CAS 255876-52-9)
- 5-(3,4-Dichlorophenyl)isoxazole-3-carboxylic Acid (CAS 876710-49-5)
- 5-(2,4-Dichlorophenyl)isoxazole-3-carboxylic Acid (CAS 712348-40-8)
- 5,8-Dichloro-4-hydroxyquinoline-3-carboxylic acid (CAS 35973-26-3)
- 1-Cyclohexyl-2-methoxybenzene (CAS 2206-48-6)
- 2-Chloro-5-(difluoromethyl)-3-formylisonicotinonitrile (CAS 1804488-19-4)
- n-Hexyltriethoxysilane (CAS 18166-37-5)
- 1-(Pyridin-2-yl)-1H-pyrazol-3-amine (CAS 87949-16-4)
- N-{2-[4-(tert-Butyl)phenoxy]ethyl}-4-(isopentyloxy)aniline (CAS 1040689-48-2)
- 5-Chloro-2-(2-fluorophenoxy)aniline (CAS 946727-72-6)
- 7-Chloro-8-(dodecylamino)quinoline-5,6-dione (CAS 25943-50-4)
- Methyl 2-Fluoro-4-nitrophenylacetate (CAS 337529-74-5)
- 6-Amino-1-benzyl-5-[(3-methoxypropyl)amino]-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 722471-88-7)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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